Study of the lixiviation behavior of mortars produced with recycled aggregates

Authors

  • Cecília Ogliari Schaefer UFSC
  • Janaíde Cavalcante Rocha UFSC
  • Malik Cheriaf UFSC

DOI:

https://doi.org/10.5585/exacta.v5i2.1172

Keywords:

Argamassas. Agregados. RCDs.

Abstract

Construction and demolition waste is constituted, in great part, by construction materials; however, it may contain dangerous substances, such as heavy metals. In order to reduce the CDW volume to be disposed in landfills, there is a certain tendency to manufacture it as recycled aggregates to be used in materials. Thus, it is indispensable to investigate the recycled aggregates verifying the possible risk of environmental contamination and the contaminants interference in its characteristics. In this study, mortars were produced using fractioned recycled aggregates. The mortars were cured for 28 days and then taken to tank test, according to NEN 7345. The results show that heavy metals are leached from mortars produced with recycled aggregates in high concentrations. In the period of 24h, the concentrations obtained were lower than the recommended limits by NBR 10004 (2004), but much higher than the limits defined by the European

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Author Biographies

Cecília Ogliari Schaefer, UFSC

Mestre em Engenharia Civil – UFSC Florianópolis – SC

Janaíde Cavalcante Rocha, UFSC

Doutor em Engenharia Civil – UFSC Florianópolis – SC

Malik Cheriaf, UFSC

Doutor em Engenharia Civil – UFSC Florianópolis – SC
Exacta v. 5, n. 2

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Published

2008-08-08

How to Cite

Schaefer, C. O., Rocha, J. C., & Cheriaf, M. (2008). Study of the lixiviation behavior of mortars produced with recycled aggregates. Exacta, 5(2), 243–252. https://doi.org/10.5585/exacta.v5i2.1172

Issue

Vol. 5 No. 2 (2007): (Jul-Dez)

Section

Papers

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